A suspension bridge cable-releasing device

Abstract

The present invention discloses a cable-releasing device for a suspension bridge, comprising a supporting base, a fixed cable-releasing seat fixedly connected to the supporting base and a sliding cable-releasing seat slidably connected thereto, wherein the fixed cable-releasing seat and the sliding cable-releasing seat are both provided with a cable-releasing assembly; the cable-releasing assembly comprises a cable-fixing roller and a rotary motor for driving the cable-fixing roller to rotate, and a damping assembly and a locking assembly attached to the cable-fixing roller, wherein a driving gear and a locking chuck are provided on the cable-fixing roller, the damping assembly comprises a damping gear meshing with the driving gear and a hydraulic damping device connected to the damping gear, and the locking assembly comprises a locking member and a locking mechanism for driving the locking member to approach or move away from the locking chuck. The present invention can realize real-time adaptive adjustment of the cable-releasing speed and can perform instant and stable locking in any direction, thereby significantly improving operation safety while ensuring construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of suspension bridge construction, in particular to a suspension bridge sling cable laying device. Background Art

[0002] In large-scale bridge projects such as suspension bridges, cable-stayed bridges, and heavy lifting, the deployment of slings or cables is a core process. During the deployment process, the release speed and tension of the cables must be precisely controlled to ensure that the cables do not loosen, become tangled, or break during traction, saddle placement, or anchoring. However, due to the rotational inertia of the cable-laying drum itself and the dynamic mismatch between the traction force and the deployment speed, traditional cable-laying devices often face problems such as speed loss and inertial impact. At the same time, the lack of safety in emergency braking and static holding makes the cables prone to slippage or breakage in sudden situations such as sudden changes in wind speed and equipment failure, directly threatening construction safety and project quality. Such problems are particularly prominent in complex working conditions such as high altitude, at night, and in strong winds, and a systematic solution is urgently needed.

[0003] Existing cable-releasing devices have significant deficiencies in speed control and safety locking. For example, Chinese Patent Application No. 201711261655.4 discloses a crane cable speed limiter that uses mechanical friction plates for damping adjustment. However, these plates are susceptible to wear, resulting in unstable damping coefficients and an inability to dynamically adapt to speed requirements under varying operating conditions. This can lead to fluctuations in cable tension during cable-releasing and even breakage of the cable drum wire or wrapping tape. Furthermore, this device only provides one-way braking via the friction plates, failing to cope with reverse inertial shocks. Under complex operating conditions, cable strands can easily become tangled due to speed fluctuations. Similarly, Chinese Patent Application No. 201620173954.7 discloses a mechanism for releasing the main cable of a suspension bridge catwalk. This mechanism uses a brake rope to adjust the speed, but the brake rope's braking mechanism has limited damping force, making it impossible to quickly stop the cable drum for extremely long main cable strands. This can easily lead to tangling of the cable strands due to continued rotation due to inertia. At the same time, the device only relies on the passive damping of the brake rope and cannot quickly lock the cable drum in an emergency, posing a safety hazard.

[0004] To address these challenges, the technical field urgently needs a novel suspension bridge cable-laying device that can achieve real-time adaptive adjustment of cable-laying speed and instant, stable locking in any direction, thereby significantly improving operational safety while ensuring construction efficiency. Such technological breakthroughs will drive the development of intelligent, high-precision bridge engineering and heavy lifting, reduce safety incidents and quality risks caused by speed loss and locking failure, and lower the overall lifecycle cost of the project. Summary of the Invention

[0005] The present invention provides a suspension bridge sling cable laying device, comprising:

[0006] A support base, on which a fixed cable-releasing seat is fixedly connected and a sliding cable-releasing seat is slidably connected, wherein both the fixed cable-releasing seat and the sliding cable-releasing seat are provided with a cable-releasing assembly;

[0007] The cable-releasing assembly includes a cable-fixing roller and a rotary motor for driving the cable-fixing roller to rotate, as well as a damping assembly and a locking assembly attached to the cable-fixing roller. A driving gear and a locking chuck are provided on the cable-fixing roller. The damping assembly includes a damping gear engaged with the driving gear and a hydraulic damping device connected to the damping gear. The locking assembly includes a locking member and a locking mechanism for driving the locking member to move closer to or away from the locking chuck.

[0008] Preferably, the locking chuck includes a first locking portion and a second locking portion distributed vertically, and locking teeth are provided on the first locking portion and the second locking portion, wherein the locking teeth of the first locking portion and the second locking portion are arranged in opposite directions;

[0009] The locking assembly includes a locking housing, on which a first locking groove and a second locking groove are respectively provided, and the locking member includes a first locking member and a second locking member respectively rotatably connected in the first locking groove and the second locking groove.

[0010] Preferably, the first locking member includes a first hinged end and a first free end, the first hinged end being rotatably connected to an end of the first locking groove close to the second locking groove, and the first free end being provided with a first locking hook for engaging with a locking tooth of the first locking portion;

[0011] The second locking member includes a second hinged end and a second free end. The second hinged end is rotatably connected to an end of the second locking groove close to the second locking groove. The second free end is provided with a second locking hook that engages with the locking teeth of the second locking portion.

[0012] Preferably, the locking mechanism includes a first pushing cam arranged in the first locking groove and a first elastic kit inserted in the first locking groove and the first locking member, the first pushing cam is arranged at one end of the first locking groove corresponding to the first free end, for pushing the first locking hook, the first elastic kit includes a first limiting rod and a first reset sleeve sleeved at one end of the first limiting rod, a first positioning block is fixedly connected to one end of the first limiting rod close to the first reset sleeve, a first support plate and a first compression spring abutting the first support plate are provided in the first reset sleeve, and the other end of the first compression spring abuts the first positioning block;

[0013] A first fixing hole fixedly connected to the first limiting rod is provided on the first locking groove, a first accommodating groove allowing the first reset sleeve to slide is opened in the first locking member, a first sliding groove allowing the first limiting rod to slide is opened in the first accommodating groove, and the first support plate abuts the first sliding groove.

[0014] Preferably, the locking mechanism includes a second pushing cam arranged in the second locking groove and a second elastic kit inserted in the second locking groove and the second locking member, the second pushing cam is arranged at one end of the second locking groove corresponding to the second free end, for pushing the second locking hook, the second elastic kit includes a second limiting rod and a second reset sleeve sleeved at one end of the second limiting rod, a second positioning block is fixedly connected to one end of the second limiting rod close to the second reset sleeve, a second support plate and a second compression spring abutting the second support plate are provided in the second reset sleeve, and the other end of the second compression spring abuts the second positioning block;

[0015] A second fixing hole is provided on the second locking groove for fixedly connecting the second limiting rod, a second accommodating groove is provided in the second locking piece to allow the second reset sleeve to slide, a second sliding groove is provided in the second accommodating groove to allow the second limiting rod to slide, and the second support plate abuts the second sliding groove.

[0016] Preferably, a rope threading assembly is provided on both sides of the support base, and the rope threading assembly includes two rope threading rollers arranged upper and lower. The rope threading assemblies on both sides of the support base are symmetrically distributed and define a straight line passing through the symmetrically distributed rope threading assemblies. The fixed rope release seat is fixedly connected to one side of the straight line, and the sliding rope release seat is slidably connected to the other side of the straight line.

[0017] Preferably, a fixing bolt is passed between the fixed cable release seat and the support base, and a fixed connection is formed by the fixing bolt. A movable slide groove is provided on the sliding cable release seat, and a movable bolt is provided on the support base. The sliding cable release seat and the support base form a sliding connection through the movable bolt and the movable slide groove.

[0018] Preferably, a hydraulic pushing device is connected to one end of the sliding cable-releasing seat away from the fixed cable-releasing seat, and the hydraulic pushing device is fixedly connected to one end of the supporting base.

[0019] Preferably, a pushing motor for driving the first pushing cam and the second pushing cam to rotate is provided on the first locking groove and the second locking groove respectively.

[0020] The beneficial effects of the present invention are:

[0021] The present invention dynamically adjusts the rotational resistance of the cable roller through the linkage of the damping gear and the hydraulic damping device, accurately controls the rotational speed of the cable roller, avoids safety hazards caused by excessive or slow release of the sling, such as entanglement or breakage of the sling, and ensures tension stability during suspension bridge construction.

[0022] The first and second locking parts of the locking chuck and the reverse locking teeth ensure that the locking element can be reliably locked during forward and reverse rotation to prevent accidental loosening, significantly improving safety during emergency braking or static holding. The locking mechanism uses an elastic kit to automatically reset the locking element. Combined with the active pushing of the pushing cam, it ensures precise execution of the locking or releasing action and avoids the risk of sticking.

[0023] The symmetrical distribution of the rope-threading rollers on both sides forms a straight channel, ensuring a stable sling path and reducing friction loss. At the same time, it is compatible with the synchronous release of single or multiple slings. The sliding rope-releasing seat is driven by a hydraulic pusher and can quickly adjust the distance from the fixed rope-releasing seat to adapt to the requirements of slings of different diameters or quantities, reducing the frequency of equipment replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] In the attached figure:

[0026] Figure 1 This is a schematic diagram of the cable-laying device for a suspension bridge;

[0027] Figure 2 This is another schematic diagram of the cable-laying device for a suspension bridge;

[0028] Figure 3 is a schematic diagram of the cable-laying assembly;

[0029] Figure 4 It is a partial schematic diagram of the cable-laying assembly;

[0030] Figure 5 is a schematic diagram of a locking assembly;

[0031] Figure 6 Cross-section of the locking assembly Figure 1 ;

[0032] Figure 7 for Figure 6 A magnified schematic diagram of point A in the middle;

[0033] Figure 8 Cross-section of the locking assembly Figure 2 ;

[0034] Figure 9 for Figure 8 Enlarged schematic diagram of point B in the middle.

[0035] In the figure: 1100, support base; 1110, cable threading assembly; 1111, cable threading roller; 1120, hydraulic pushing device; 1200, fixed cable release seat; 1210, fixing bolt; 1300, sliding cable release seat; 1310, movable slide; 1320, movable bolt; 2000, cable release assembly; 2100, cable fixing roller; 2110, driving gear; 2120, locking chuck; 2121, first locking portion; 2122, second locking portion; 2123, locking latch; 2130, rotary motor; 2200, damping assembly; 2210, damping gear; 2220, hydraulic damping device; 2300, locking assembly; 2310, locking housing; 2311, first locking groove; 2312, first fixing hole; 2313, second locking groove; 2314, second fixing hole; 2320, first locking member; 2321, first hinge end ; 2322, first free end; 2323, first locking hook; 2324, first receiving groove; 2325, first sliding slot; 2330, second locking member; 2331, second hinged end; 2332, second free end; 2333, second locking hook; 2334, second receiving groove; 2335, second sliding slot; 2400, locking mechanism; 2410, first push cam; 2411, first elastic kit ; 2412, first limiting rod; 2413, first positioning block; 2414, first reset sleeve; 2415, first support plate; 2416, first compression spring; 2420, second push cam; 2421, second elastic kit; 2422, second limiting rod; 2423, second positioning block; 2424, second reset sleeve; 2425, second support plate; 2426, second compression spring; 2430, push motor. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described below in conjunction with the accompanying drawings of the present invention, but the described embodiments are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] like Figures 1 to 9 As shown, the present invention provides a suspension bridge sling cable release device, comprising a support base 1100, a fixed cable release seat 1200 fixedly connected to the support base 1100 and a sliding cable release seat 1300 slidably connected thereto, wherein both the fixed cable release seat 1200 and the sliding cable release seat 1300 are provided with a cable release assembly 2000;

[0038] The cable-releasing assembly 2000 includes a cable roller 2100 and a rotating motor 2130 for driving the cable roller 2100 to rotate, as well as a damping assembly 2200 and a locking assembly 2300 attached to the cable roller 2100. A driving gear 2110 and a locking chuck 2120 are provided on the cable roller 2100. The damping assembly 2200 includes a damping gear 2210 engaged with the driving gear 2110 and a hydraulic damping device 2220 connected to the damping gear 2210. The locking assembly 2300 includes a locking member and a locking mechanism 2400 for driving the locking member to move closer to or away from the locking chuck 2120.

[0039] Specifically, the support base 1100 is the foundation of the entire cable-laying device. It must bear the weight of components such as the fixed cable-laying seat 1200, the sliding cable-laying seat 1300, and the cable-laying assembly 2000. It must also withstand the tension exerted by the sling during the cable-laying process. Therefore, the support base 1100 must possess sufficient strength and stability. Typically, the support base 1100 is constructed of high-strength steel. Through rational structural design, such as the addition of reinforcing ribs, its bending and torsion resistance is enhanced to ensure that it will not deform or damage during the cable-laying process, thereby ensuring the stable operation of the entire device.

[0040] Among them, the rope-releasing assembly 2000 is the core part of the device, which mainly includes a rope-fixing roller 2100, a rotating motor 2130, a damping assembly 2200 and a locking assembly 2300.

[0041] The cable roller 2100 is the component that directly contacts the sling. Its surface is typically made of a material with a high coefficient of friction to increase friction with the sling, ensuring smooth payout of the sling as the cable roller 2100 rotates. A driving gear 2110 is mounted on the cable roller 2100, which meshes with a damping gear 2210 in the damping assembly 2200, transmitting power to the damping assembly 2200 via a gear transmission.

[0042] The rotary motor 2130 is the power source that drives the cable roller 2100. By controlling the rotational speed and direction of the rotary motor 2130, the rotational speed and direction of the cable roller 2100 can be precisely controlled, thereby adjusting the speed and direction of the sling release. The rotary motor 2130 typically uses variable frequency speed regulation technology, which allows for flexible adjustment of speed based on actual needs to meet the requirements of cable release under different working conditions.

[0043] The damping assembly 2200 consists of a damping gear 2210 and a hydraulic damping device 2220. The damping gear 2210 meshes with the driving gear 2110 on the cable roller 2100. When the cable roller 2100 rotates, it drives the damping gear 2210 to rotate. The hydraulic damping device 2220, connected to the damping gear 2210, generates a damping force through the flow of hydraulic oil, thereby buffering and regulating the rotation of the cable roller 2100. During the cable-lowering process, if the speed of the cable changes due to external factors such as wind and bridge vibration, the damping assembly 2200 can promptly adjust the rotation speed of the cable roller 2100 to maintain stable cable tension, prevent the cable from becoming slack or over-tensioned, and ensure the safety and stability of the cable-lowering process.

[0044] like Figures 3 to 8 As shown, in this embodiment, the locking chuck 2120 includes a first locking portion 2121 and a second locking portion 2122 distributed vertically. Locking teeth 2123 are provided on the first locking portion 2121 and the second locking portion 2122. The locking teeth 2123 of the first locking portion 2121 and the second locking portion 2122 are arranged in opposite directions.

[0045] The locking assembly 2300 includes a locking shell 2310, on which a first locking groove 2311 and a second locking groove 2313 corresponding to the first locking portion 2121 and the second locking portion 2122 are respectively provided, and the locking member includes a first locking member 2320 and a second locking member 2330 respectively rotatably connected in the first locking groove 2311 and the second locking groove 2313.

[0046] Specifically, the locking assembly 2300 is used to lock the cable roller 2100 when necessary to prevent the sling from being accidentally released. The locking assembly 2300 includes a locking member and a locking mechanism 2400. The locking chuck 2120 includes a first locking portion 2121 and a second locking portion 2122, which are divided into upper and lower parts. Locking teeth 2123 are provided on the first locking portion 2121 and the second locking portion 2122, and the locking teeth 2123 of the first locking portion 2121 and the second locking portion 2122 are arranged in opposite directions. This design enables the locking chuck 2120 to achieve the locking function in two directions, improving the reliability and stability of the locking. The locking housing 2310 is provided with a first locking groove 2311 and a second locking groove 2313 corresponding to the first locking portion 2121 and the second locking portion 2122, respectively, providing space for the locking member to be installed and moved.

[0047] like Figure 6 and Figure 8As shown, in this embodiment, the first locking member 2320 includes a first hinged end 2321 and a first free end 2322. The first hinged end 2321 is rotatably connected to an end of the first locking groove 2311 near the second locking groove 2313. The first free end 2322 is provided with a first locking hook 2323 that engages with the locking tooth 2123 of the first locking portion 2121.

[0048] The second locking member 2330 includes a second hinged end 2331 and a second free end 2332. The second hinged end 2331 is rotatably connected to an end of the second locking groove 2313 close to the second locking groove 2313. The second free end 2332 is provided with a second locking hook 2333 that engages with the locking tooth 2123 of the second locking portion 2122.

[0049] Specifically, the locking member includes a first locking member 2320 and a second locking member 2330, which are respectively rotatably connected to the first locking groove 2311 and the second locking groove 2313. The first locking member 2320 includes a first hinged end 2321 and a first free end 2322. The first hinged end 2321 is rotatably connected to the end of the first locking groove 2311 near the second locking groove 2313, and the first free end 2322 is provided with a first locking hook 2323 that engages with the locking tooth 2123 of the first locking portion 2121. The second locking member 2330 includes a second hinged end 2331 and a second free end 2332. The second hinged end 2331 is rotatably connected to the end of the second locking groove 2313 near the second locking groove 2313, and the second free end 2332 is provided with a second locking hook 2333 that engages with the locking tooth 2123 of the second locking portion 2122. When the cable roller 2100 needs to be locked, the locking mechanism 2400 drives the locking member to rotate, so that the first locking hook 2323 and the second locking hook 2333 are respectively engaged with the locking teeth 2123 of the first locking portion 2121 and the second locking portion 2122, thereby locking the cable roller 2100.

[0050] like Figure 6 and Figure 7As shown, in this embodiment, the locking mechanism 2400 includes a first pushing cam 2410 provided in the first locking groove 2311 and a first elastic kit 2411 inserted into the first locking groove 2311 and the first locking member 2320. The first pushing cam 2410 is provided at one end of the first locking groove 2311 corresponding to the first free end 2322, and is used to push the first locking hook 2323. The first elastic kit 2411 includes a first limiting rod 2412 and a first reset sleeve 2414 sleeved on one end of the first limiting rod 2412. A first positioning block 2413 is fixedly connected to one end of the first limiting rod 2412 close to the first reset sleeve 2414. A first support plate 2415 and a first compression spring 2416 abutting against the first support plate 2415 are provided in the first reset sleeve 2414. The other end of the first compression spring 2416 abuts against the first positioning block 2413.

[0051] A first fixing hole 2312 is provided on the first locking groove 2311 for fixedly connecting the first limiting rod 2412, a first accommodating groove 2324 is provided in the first locking member 2320 to allow the first reset sleeve 2414 to slide, a first sliding groove 2325 is provided in the first accommodating groove 2324 to allow the first limiting rod 2412 to slide, and the first support plate 2415 abuts against the first sliding groove 2325.

[0052] like Figure 8 and Figure 9 As shown, in this embodiment, the locking mechanism 2400 includes a second pushing cam 2420 provided in the second locking groove 2313 and a second elastic kit 2421 inserted into the second locking groove 2313 and the second locking member 2330. The second pushing cam 2420 is provided at one end of the second locking groove 2313 corresponding to the second free end 2332, and is used to push the second locking hook 2333. The second elastic kit 2421 includes a second limiting rod 2422 and a second reset sleeve 2424 sleeved on one end of the second limiting rod 2422. A second positioning block 2423 is fixedly connected to one end of the second limiting rod 2422 close to the second reset sleeve 2424. A second support plate 2425 and a second compression spring 2426 abutting against the second support plate 2425 are provided in the second reset sleeve 2424. The other end of the second compression spring 2426 abuts against the second positioning block 2423.

[0053] A second fixing hole 2314 is provided on the second locking groove 2313 for fixedly connecting the second limiting rod 2422, a second accommodating groove 2334 is provided in the second locking member 2330 to allow the second reset sleeve 2424 to slide, a second sliding groove 2335 is provided in the second accommodating groove 2334 to allow the second limiting rod 2422 to slide, and the second support plate 2425 abuts against the second sliding groove 2335.

[0054] like Figure 5 As shown, in this embodiment, a pushing motor 2430 for driving the first pushing cam 2410 and the second pushing cam 2420 to rotate is respectively provided on the first locking groove 2311 and the second locking groove 2313.

[0055] Specifically, the locking mechanism 2400 includes a first pushing cam 2410 arranged in the first locking groove 2311 and a first elastic kit 2411 passing through the first locking groove 2311 and the first locking member 2320, as well as a second pushing cam 2420 arranged in the second locking groove 2313 and a second elastic kit 2421 passing through the second locking groove 2313 and the second locking member 2330.

[0056] The first pushing cam 2410 is disposed in the first locking groove 2311 at an end corresponding to the first free end 2322, and the second pushing cam 2420 is disposed in the second locking groove 2313 at an end corresponding to the second free end 2332, respectively used to push the first locking hook 2323 and the second locking hook 2333. Pushing motors 2430 are respectively disposed in the first locking groove 2311 and the second locking groove 2313 to drive the first pushing cam 2410 and the second pushing cam 2420 to rotate. By controlling the rotation of the pushing motors 2430, the positions of the first pushing cam 2410 and the second pushing cam 2420 can be precisely controlled, thereby achieving the pushing and releasing operations of the locking member.

[0057] Furthermore, the first elastic assembly 2411 includes a first limiting rod 2412 and a first reset sleeve 2414 sleeved on one end of the first limiting rod 2412. A first positioning block 2413 is fixedly connected to the end of the first limiting rod 2412 near the first reset sleeve 2414. A first support plate 2415 and a first compression spring 2416 abutting the first support plate 2415 are provided in the first reset sleeve 2414. The other end of the first compression spring 2416 abuts the first positioning block 2413. A first fixing hole 2312 fixedly connected to the first limiting rod 2412 is provided in the first locking groove 2311. A first accommodating groove 2324 that allows the first reset sleeve 2414 to slide is defined in the first locking member 2320. A first sliding slot 2325 that allows the first limiting rod 2412 to slide is defined in the first accommodating groove 2324. The first support plate 2415 abuts the first sliding slot 2325. The structure of the second elastic member 2421 is similar to that of the first elastic member 2411, and includes a second limiting rod 2422, a second return sleeve 2424, a second positioning block 2423, a second support plate 2425, and a second compression spring 2426. The elastic member serves to return the locking member to its initial position after locking or releasing, preparing for the next operation. The elastic member also acts as a buffer, reducing the impact of the locking member's movement on other components.

[0058] like Figure 1 and Figure 2 As shown, in this embodiment, a rope threading assembly 1110 is provided on both sides of the support base 1100. The rope threading assembly 1110 includes two rope threading rollers 1111 arranged upper and lower. The rope threading assemblies 1110 on both sides of the support base 1100 are symmetrically distributed and define a straight line passing through the symmetrically distributed rope threading assemblies 1110. The fixed rope release seat 1200 is fixedly connected to one side of the straight line, and the sliding rope release seat 1300 is slidably connected to the other side of the straight line.

[0059] Specifically, the cable threading assembly 1110 includes two cable threading rollers 1111 arranged one above the other, symmetrically distributed on both sides of the support base 1100, and defining a straight line passing through the symmetrically distributed cable threading assembly 1110. The fixed cable release seat 1200 is fixedly connected to one side of the straight line, and the sliding cable release seat 1300 is slidably connected to the other side of the straight line. The function of the cable threading assembly 1110 is to guide the sling to move along a specific path, ensuring that the sling will not deviate or tangle during the cable release process, thereby ensuring the smooth progress of the cable release process. The cable threading rollers 1111 are usually made of wear-resistant material and have a smooth surface to reduce wear on the sling.

[0060] like Figure 1 and Figure 2 As shown, in this embodiment, a fixing bolt 1210 is passed between the fixed cable release seat 1200 and the support base 1100, and a fixed connection is formed by the fixing bolt 1210, a movable slide groove 1310 is provided on the sliding cable release seat 1300, and a movable bolt 1320 is provided on the support base 1100, and the sliding cable release seat 1300 and the support base 1100 form a sliding connection through the movable bolt 1320 and the movable slide groove 1310.

[0061] Specifically, fixed cable-releasing seat 1200 is fixedly connected to support base 1100 via fixing bolts 1210, maintaining a relatively fixed position. The cable-releasing assembly 2000 on fixed cable-releasing seat 1200 secures one end of the sling, providing stable support and a starting point for the sling during the release process. The provision of fixing bolts 1210 ensures a secure connection between fixed cable-releasing seat 1200 and support base 1100, preventing loosening due to the tension of the sling during release.

[0062] The sliding cable-releasing seat 1300 is slidably connected to the support base 1100 via a movable bolt 1320 and a movable chute 1310, allowing it to slide along the support base 1100 in a specific direction. During the cable-releasing process, as the sling is released, the sliding cable-releasing seat 1300 automatically adjusts its position based on the length of the sling, maintaining stable cable tension. A hydraulic actuator 1120 is connected to the end of the sliding cable-releasing seat 1300 that is distal from the fixed cable-releasing seat 1200. The hydraulic actuator 1120 precisely controls the sliding distance and speed of the sliding cable-releasing seat 1300 through its telescopic motion, thereby achieving precise control over the cable-releasing process.

[0063] like Figure 1 and Figure 2 As shown, in this embodiment, a hydraulic pushing device 1120 is connected to one end of the sliding cable-releasing seat 1300 away from the fixed cable-releasing seat 1200 , and the hydraulic pushing device 1120 is fixedly connected to one end of the supporting base 1100 .

[0064] Specifically, the hydraulic propulsion device 1120 is fixedly connected to one end of the support base 1100 and to the end of the sliding cable-releasing seat 1300 that is away from the fixed cable-releasing seat 1200. The hydraulic propulsion device 1120 generates thrust through the flow of hydraulic oil, pushing the sliding cable-releasing seat 1300 to slide on the support base 1100. The hydraulic propulsion device 1120 offers advantages such as high thrust, high control accuracy, and fast response speed. It can precisely control the sliding distance and speed of the sliding cable-releasing seat 1300 according to actual needs, thereby achieving precise control over the sling release process.

[0065] At the same time, the hydraulic pushing device can also be equipped with detection elements such as pressure sensors and displacement sensors to monitor the working status of the hydraulic pushing device and the position information of the sliding cable-releasing seat in real time, providing data support for the automated control of the cable-releasing process.

[0066] In some embodiments, to further enhance the automation and operational precision of the sling release mechanism, an intelligent control system may be optionally added. This intelligent control system can monitor parameters such as the sling release speed, tension, and displacement in real time, and automatically adjust the speed of the wheel motor, the output force of the hydraulic pusher, and the operating status of the locking assembly according to a pre-set program.

[0067] When the sling release speed exceeds a set value, the intelligent control system automatically adjusts the speed of the rotary motor to reduce the sling release speed. When the sling tension is abnormal, the intelligent control system automatically adjusts the output force of the hydraulic pusher and the distance between the fixed and sliding sling release seats to restore the sling tension to normal. The intelligent control system also features fault diagnosis and alarm functions. When a device malfunctions, it promptly issues an alarm and displays fault information, facilitating timely repairs.

[0068] The working process of the suspension bridge sling cable laying device provided by the present invention is as follows:

[0069] Initial state: The device is in a stationary state, the fixed cable release seat is fixed on one side of the support base, the sliding cable release seat is located on the other side through a hydraulic push device, and the locking assembly is in a locked state to prevent the cable roller from rotating accidentally.

[0070] Preparation for laying out the sling: Secure one end of the sling to the sling assembly on the fixed sling seat, and pass the other end through the sling threading assembly and wrap it around the sling assembly on the sliding sling seat. Release the locking assembly through the control system to allow the sling roller to rotate freely.

[0071] Rope-releasing process: The rotary motor is activated, driving the rope-holding roller to rotate and begin the rope-releasing process. The damping assembly, through the hydraulic damping device, provides appropriate resistance to control the rope-releasing speed and prevent the rope from spinning out of control due to excessive speed. Simultaneously, the hydraulic pusher pushes the sliding rope-releasing seat on the support base according to the changes in rope tension, maintaining stable rope tension.

[0072] Rope-releasing control: The tension of the sling, the speed of the sling and other parameters can be monitored in real time through a manual or intelligent control system, and the speed of the wheel motor and the thrust of the hydraulic propulsion device can be automatically adjusted according to the preset values ​​to ensure a smooth and safe sling-releasing process.

[0073] Rope release stop: When the predetermined length of the rope is reached or the rope needs to be stopped, the rotary motor stops and the locking assembly locks the rope roller to prevent further release of the rope. At this point, the device returns to its initial state and waits for the next rope release operation.

[0074] The present invention has many application scenarios, including but not limited to the following description scenarios:

[0075] During the installation of the main cables of a suspension bridge, thousands of meters of steel wire rope or strand must be smoothly released from reels to both sides of the bridge towers. This device can be fixed to the top of the bridge tower or at the anchorage. Working in conjunction with dual cable holders, it precisely controls the main cable release speed and uses hydraulic damping to prevent loosening or over-tightening due to inertia.

[0076] When cables on older cable-stayed bridges need to be replaced, the old cables must be released before installing new ones. This device can be temporarily installed at the ends of towers or beams. Sliding the cable release seat adjusts the spacing to accommodate cables of varying lengths. A locking assembly ensures safety during the release of the old cables, while a damping system controls the tension of the new cables during installation.

[0077] During the construction of high-rise buildings or large-span structures, heavy components such as steel trusses and prefabricated components must be hoisted using cables. This device, acting as a cable release terminal, controls the hoisting speed through damping adjustment. Its locking function provides emergency braking in unexpected situations, such as excessive wind speeds, to ensure construction safety.

[0078] During offshore wind turbine installations or oil platform construction, anchor chains or mooring cables must be deployed in harsh sea conditions. This device's hydraulic drive and bidirectional locking function resist wave impact, ensuring the cable is released at a predetermined rate, preventing damage to the equipment due to dynamic loads.

Claims

1. A suspension bridge sling cable laying device, characterized in that: include: A support base, on which a fixed cable-releasing seat is fixedly connected and a sliding cable-releasing seat is slidably connected, wherein both the fixed cable-releasing seat and the sliding cable-releasing seat are provided with a cable-releasing assembly; The cable-releasing assembly includes a cable-fixing roller and a rotary motor for driving the cable-fixing roller to rotate, as well as a damping assembly and a locking assembly attached to the cable-fixing roller. The cable-fixing roller is provided with a driving gear and a locking chuck. The damping assembly includes a damping gear meshing with the driving gear and a hydraulic damping device connected to the damping gear. The locking assembly includes a locking member and a locking mechanism for driving the locking member toward or away from the locking chuck. The locking chuck includes a first locking portion and a second locking portion distributed vertically, and locking teeth are provided on the first locking portion and the second locking portion, wherein the locking teeth of the first locking portion and the second locking portion are arranged in opposite directions; The locking assembly includes a locking housing, a first locking groove and a second locking groove are provided on the locking housing, and the locking member includes a first locking member and a second locking member rotatably connected to the first locking groove and the second locking groove respectively. The first locking member is a first locking member that is fixed to the first locking member and a first spring that is provided on the first locking member. The first locking member is a first locking member that is fixed to the first locking member and a first spring that is provided on the first locking member. The first locking member is a first locking member that is fixed to the first locking member and a first spring that is provided on the first locking member. A first fixing hole fixedly connected to the first limiting rod is provided on the first locking groove, a first receiving groove allowing the first reset sleeve to slide is provided in the first locking member, a first sliding groove allowing the first limiting rod to slide is provided in the first receiving groove, and the first support plate abuts against the first sliding groove; The cam is provided in the second locking groove and the second elastic kit is provided in the second locking groove and the second locking member. The second pushing cam is provided in the second locking groove at one end corresponding to the second free end, and is used to push the second locking hook. The second elastic kit includes a second limiting rod and a second reset sleeve sleeved at one end of the second limiting rod. A second positioning block is fixedly connected to one end of the second limiting rod close to the second reset sleeve. A second support plate and a second compression spring abutting the second support plate are provided in the second reset sleeve, and the other end of the second compression spring abuts the second positioning block. A second fixing hole is provided on the second locking groove for fixedly connecting the second limiting rod, a second accommodating groove is provided in the second locking piece to allow the second reset sleeve to slide, a second sliding groove is provided in the second accommodating groove to allow the second limiting rod to slide, and the second support plate abuts the second sliding groove.

2. The suspension bridge sling cable laying device according to claim 1, characterized in that: The first locking member includes a first hinged end and a first free end, the first hinged end is rotatably connected to an end of the first locking groove close to the second locking groove, and the first free end is provided with a first locking hook that engages with the locking teeth of the first locking portion; The second locking member includes a second hinged end and a second free end. The second hinged end is rotatably connected to an end of the second locking groove close to the second locking groove. The second free end is provided with a second locking hook that engages with the locking teeth of the second locking portion.

3. The suspension bridge sling cable laying device according to claim 1, characterized in that: A cable threading assembly is provided on both sides of the support base. The cable threading assembly includes two cable threading rollers arranged up and down. The cable threading assemblies on both sides of the support base are symmetrically distributed and define a straight line passing through the symmetrically distributed cable threading assemblies. The fixed cable release seat is fixedly connected to one side of the straight line, and the sliding cable release seat is slidably connected to the other side of the straight line.

4. The suspension bridge sling cable laying device according to claim 3, characterized in that: A fixing bolt is provided between the fixed cable-releasing seat and the supporting base, and a fixed connection is formed by the fixing bolt. A movable slide groove is provided on the sliding cable-releasing seat, and a movable bolt is provided on the supporting base. The sliding cable-releasing seat and the supporting base form a sliding connection through the movable bolt and the movable slide groove.

5. The suspension bridge sling cable laying device according to claim 4, characterized in that: A hydraulic pushing device is connected to one end of the sliding cable-releasing seat away from the fixed cable-releasing seat, and the hydraulic pushing device is fixedly connected to one end of the supporting base.

6. The suspension bridge sling cable laying device according to claim 1, characterized in that: The first locking groove and the second locking groove are respectively provided with a pushing motor for driving the first pushing cam and the second pushing cam to rotate.

Images